Self-regulating living implant could end daily insulin injections

Self-regulating living implant could end daily insulin injections
Crystal Capsules. Credit: Technion – Israel Institute of Technology

A pioneering study marks a major step toward eliminating the need for daily insulin injections for people with diabetes. The study was led by Assistant Professor Shady Farah of the Faculty of Chemical Engineering at the Technion—Israel Institute of Technology, in co-correspondence with MIT, and in collaboration with Harvard University, Johns Hopkins University, and the University of Massachusetts. The findings are published in the journal Science Translational Medicine.

The research introduces a living, cell-based implant that can function as an autonomous artificial pancreas, essentially a living drug that is long-term, thanks to a novel crystalline shield-protecting technology...

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Unhackable metasurface holograms: Security technology can lock information with light color and distance

Schematic of secure holography using a reconfigurable stacked metasurface based on a modular diffractive deep neural network. Each metasurface layer independently reconstructs distinct wavelength-encoded holograms (e.g., ID and QR). When two layers are aligned at a specific interlayer spacing, the system is trained to reveal an encrypted hologram (PW). Because decryption is enabled by the combined choice of wavelength and interlayer spacing as physical decoding keys, the information can be retrieved without electronic computation. This single platform integrates standalone (layer-wise), combinational (cipher), and multi-wavelength functionalities, enabling a photonic security platform for optical encryption and data storage. Credit: POSTECH

A research team led by Professor Junsuk Rho a...

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Scientists just mapped the hidden structure holding the universe together

The Universe’s Hidden Structure Revealed
This map shows the Dark Matter distribution in the COSMOS field observed by the Hubble Space Telescope (left) and by the James Webb Space Telescope (right). Dark Matter distribution in the COSMOS field. The overlaid contours mark regions of equal dark-matter density, highlighting where this invisible matter – shown here in a blue color ­– is most strongly concentrated. Credit: Dr. Gavin Leroy/Professor Richard Massey/COSMOS-Webb collaboration

Scientists have produced the most detailed map ever created of dark matter that runs throughout the Universe, revealing how it has influenced the formation of stars, galaxies, and planets.

The research, which includes astronomers from Durham University in the UK, provides new insight into how this unseen substance helped draw ordinary matt...

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Physicists achieve near-zero friction on macroscopic scales

Physicists achieve near-zero friction on macroscopic scales
Macroscale structural superlubricity at graphite/graphite and graphite/MoS2 interfaces. Credit: Minhao Han et al.

For the first time, physicists in China have virtually eliminated the friction felt between two surfaces at scales visible to the naked eye. In demonstrating “structural superlubricity,” the team, led by Quanshui Zheng at Tsinghua University, have resolved a long-standing debate surrounding the possibility of the effect. Published in Physical Review Letters, the result could potentially lead to promising new advances in engineering.

What structural superlubricity promises
When two objects slide over each other, any roughness on their surfaces will almost inevitably resist the motion, creating the force of friction...

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